The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 24, 2021
Filed:
May. 29, 2018
Maurice Guitton, Lunenburg, CA;
Martin Dugas, Lunenburg, CA;
Eric Dugas, Caraauet, CA;
Neri Jean, Tracedie-Sheila, CA;
Jacques Dugas, Caraquet, CA;
Maurice Guitton, Lunenburg, CA;
Martin Dugas, Lunenburg, CA;
Eric Dugas, Caraauet, CA;
Neri Jean, Tracedie-Sheila, CA;
Jacques Dugas, Caraquet, CA;
Other;
Abstract
An improved liner for a container in which gases, liquids, or powders are stored. The liner is a multi-layer structure made in a roto molding machine. The liner includes a first outer layer made of metallocene polyethylene, an intermediate gas and liquid impermeable layer, and one or more inner layers made of thermoplastic material compatible with the material stored inside the container. During the molding process, the three layers are made sequentially with the second and third layers being bonded and fused to the adjacent layer to form a uniform composite layer. The outer layer is made of metallocene polyethylene with superior rigidity and relatively low coefficient of thermal expansion making the liner less susceptible to cracking and useful as a layup structure for molding a structure around it. The liner is then used as a layup structure for outer fibers and infused resin.